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| Registros recuperados : 116 | |
| 18. |  | RODRIGUES, A. F.; NOVOTNY, E. H.; OLIVEIRA, R. R. de. Avaliação química de solos de carvoarias do séc. XIX do maciço da Pedra Branca, Rio de Janeiro. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 11., 2015, São Carlos, SP. Substâncias húmicas, ciência e tecnologia: livro de resumos. São Carlos, SP: IQSC, 2015. p. 95-98.| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 116 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
19/08/2020 |
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Data da última atualização: |
06/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SMIDT, E.; TINTNER, J.; NELLE, O.; OLIVEIRA, R. R.; PATZLAFF, R.; NOVOTNY, E. H.; KLEMM, S. |
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Afiliação: |
E. SMIDT, University of Natural Resources and Life Sciences, Vienna; J. TINTNER, University of Natural Resources and Life Sciences, Vienna; O. NELLE, State Office for Cultural Heritage Baden-Württemberg, Germany; R. R. OLIVEIRA, PUC-RIO; R. PATZLAFF, UFRJ; ETELVINO HENRIQUE NOVOTNY, CNPS; S. KLEMM, Archaeology & Communication, Vienna. |
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Título: |
Infrared spectroscopy refines chronological assessment, depositional environment and pyrolysis conditions of archeological charcoals. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Scientific Reports, v. 10, 12427, 2020. |
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DOI: |
https://doi.org/10.1038/s41598-020-69445-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Based on infrared spectral characteristics, six archeological sample sets of charcoals from German (5) and Brazilian (1) sites, covering the time span from the nineteenth century CE to 3950 BCE, were compared to a chronological (present to the fifteenth century BCE) series of Austrian charcoals. A typical chronological trend of several bands (stretch vibrations: O-C-O of carboxylates at 1,585-1,565 and 1,385-1,375 cm(-1), C-O carboxylic acids at 1,260-1,250 cm(-1)) that indicate oxidation and subsequently increasing hydrophilicity (O-H stretch vibration at about 3,400 cm(-1)) was also contained in the archive samples. Three sample sets fit in the typical band development according to their age. For three sample sets this conformity was not observed. Despite the age of two sample sets (3950-2820 BCE), most charcoals were assigned to the Modern Period. Apart from the high degree of carbonization, anaerobic depositional conditions over a longer period of time seem to contribute to the surprising conservation. Non-removable mineral components in charcoals, as observed in a third sample set, strongly influence infrared band intensities and positions of organic compounds. The role of inorganic components in terms of charcoal aging, and the information we can obtain from spectral characteristics in an archeological context, are discussed. |
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Thesagro: |
Matéria Orgânica; Solo. |
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Thesaurus NAL: |
Biochar; Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215425/1/Infrared-spectroscopy-refines-chronological-assessment-2020.pdf
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Marc: |
LEADER 02120naa a2200253 a 4500
001 2124443
005 2020-10-06
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1038/s41598-020-69445-6$2DOI
100 1 $aSMIDT, E.
245 $aInfrared spectroscopy refines chronological assessment, depositional environment and pyrolysis conditions of archeological charcoals.$h[electronic resource]
260 $c2020
520 $aBased on infrared spectral characteristics, six archeological sample sets of charcoals from German (5) and Brazilian (1) sites, covering the time span from the nineteenth century CE to 3950 BCE, were compared to a chronological (present to the fifteenth century BCE) series of Austrian charcoals. A typical chronological trend of several bands (stretch vibrations: O-C-O of carboxylates at 1,585-1,565 and 1,385-1,375 cm(-1), C-O carboxylic acids at 1,260-1,250 cm(-1)) that indicate oxidation and subsequently increasing hydrophilicity (O-H stretch vibration at about 3,400 cm(-1)) was also contained in the archive samples. Three sample sets fit in the typical band development according to their age. For three sample sets this conformity was not observed. Despite the age of two sample sets (3950-2820 BCE), most charcoals were assigned to the Modern Period. Apart from the high degree of carbonization, anaerobic depositional conditions over a longer period of time seem to contribute to the surprising conservation. Non-removable mineral components in charcoals, as observed in a third sample set, strongly influence infrared band intensities and positions of organic compounds. The role of inorganic components in terms of charcoal aging, and the information we can obtain from spectral characteristics in an archeological context, are discussed.
650 $aBiochar
650 $aSoil organic matter
650 $aMatéria Orgânica
650 $aSolo
700 1 $aTINTNER, J.
700 1 $aNELLE, O.
700 1 $aOLIVEIRA, R. R.
700 1 $aPATZLAFF, R.
700 1 $aNOVOTNY, E. H.
700 1 $aKLEMM, S.
773 $tScientific Reports$gv. 10, 12427, 2020.
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Embrapa Solos (CNPS) |
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